not sophisticated; simple; artless.

without complexity or refinements

a relatively unsophisticated mechanism.

unadulterated; pure; genuine.

adjective

cultured , experienced , refined , sophisticated , upper-class , worldly

adjective

artless , authentic , bush-league * , callow , childlike , clean , cornball , corny * , crude , folksy , genuine , green * , guileless , homey * , inexperienced , ingenuous , innocent , kid * , naive , plain , pure , raw , rookie , straightforward , unadulterated , unaffected , unartificial , uncomplicated , uninvolved , unrefined , unschooled , unstudied , untutored , unworldly , wide-eyed , natural , simple , corny , cracker-barrel , crackerbarrel , green , gullible , homespun , ignorant , ingenious , modest , oafish , philistine , plebeian , provincial , rustic , simpleminded , uncouth , unenlightened , uninformed , unpolished , unpretentious